Video ads that appear across YouTube. Since Google owns YouTube, YouTube advertising shares many of the core features of Google Ads, but with 1 big difference: They’re videos. Ads can play before (“pre-roll”) or after (“bumper”) a video a user has selected. They can also be inserted into the middle of a playlist (“TrueView”) or a video longer than 10 minutes (“mid-roll”). YouTube ads can be pay-per-click (PPC) or pay per view based on their length and placement.